Cecil, I have the same mod and also a FLEX-1500 in my OMNI-VII. A drop of 3 db
in signal strength (assuming approximately the same impedance load each side of
the split) in each receiver is to be expected. Given the sensitivity of both
the FLEX-1500 and OMNI-VII, I doubt a buffer amp will do much of anything
beyond providing the psychological satisfaction of raising S-meter readings one
half S unit.
For those interested in the N4PY sub-rx mod for the OMNI-VII see:
http://tentecwiki.org/doku.php?id=588secondrx and for how I used it with
DDUTIL and CW Skimmer, see:
http://www.dxlabsuite.com/dxlabwiki/DDUtilPowerSDRN1MMSkimmerCommander
73 ES DX,
Gary -- AB9M
From: w4cm@cox.net
Sent: Tuesday, February 05, 2013 9:31 AM
To: TenTec@yahoogroups.com ; Ten-Tec-Omni-VII@yahoogroups.com
Subject: [Ten-Tec-Omni-VII] Omni 7 receive antenna split
I am using the Flex 1500 as a panadapter with my Omni 7 and utilizing the N4PY
software.
I made the internal receive antenna split as described in the directions in the
N4PY software to split the receive antenna for the Omni and bring optional
receive outputs to the spare jacks on the rear of the Omni. (jumpers supplied
by Ten Tec, THANKS !!)
Issue is now the Omni has an additional load not buffered on the antenna
dropping signal to the Omni. I have been told there may be a buffer amp that
can be purchased to modify the new split of the antenna and return normal
operation to the Omni and the 1500.
Any input please?
Thanks,
Cecil
W4CM
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